An Expert System-Based Automation in Indian Traction System for a One Way Single Platform Station by Introducing PLC

Nowadays, it is very often that some portion of the Indian traction system is still suffering from a single line railway transportation. This in turn creates a havoc disturbance in maintaining the proper sequence of traction control system. Also, passengers are taking risk to catch the train which is already in motion but no such action has been taken to eliminate these consequences. It has been found that more or less various works have been done on Automation in Railway Crossing Gate using Microcontroller and IR Sensor. Thus, it is often decided to develop an idea for the Indian traction system to ensure better controlling action by introducing Limit Switches as Tactile Sensors and by introducing HMI using PLC. The purpose here to take control over various controlling domains, including Railway crossing gate are as follows: Track signal, crossing level signal, alarm notification, and platform edge fence. The proper sequencing needs to be operated via a 128 I/O module with 2 KB memory size small PLC kit.

On the Issue of Pre-Revolutionary Projects of the Pass Railway in Transcaucasia

For more than 150 years, the issue of building a railway through the Main Caucasus Range in its central part, has been discussed, which has posed the main problem of railway construction in the Caucasus. The question of why the railway crossing through the Caucasus ridge should necessarily go through the central part of the ridge was immediately obvious and understandable. In Transcaucasia, of course, it was possible to make a road along the Black Sea and along the Caspian Sea, which was eventually done, but the direction through the central part of the Caucasus Range is of great strategic and economic importance. Such a superhighway opens the meek path from Russia and Europe to Transcaucasia, and from there to Turkey and Persia, India and the Middle East. The article analyzes the discussion of projects of a pass through the Caucasian ridge of the railway. What projects were proposed, what were their advantages and disadvantages, who and It is considered, what projects were proposed, what were their advantages and disadvantages, who and why were interested in each project. The main problem of the construction of the pass railway was of technical issues. And although in 1917 the authorities of Vladikavkaz actually launched the construction of a pass road, the issues of the technical plan were not yet fully clarified. But there is no doubt that if it were not for the revolutionary events, the pass road would eventually be built, since Vladikavkaz was very interested in its construction. Today, the construction of a pass railway is still an urgent task. Therefore, it is necessary to know and analyze the projects of past years.

Safety and risk analysis at railway crossings of north-south Addis Ababa light rail

Purpose Railway-level crossings (RLCs) are the point of intersection between rail and road users and are therefore hotpots of road-rail user conflict and catastrophic collisions. The purpose of this study is to assess the risks associated with RLCs and suggest probable reduction measures. Through questionnaires and visual inspection, the authors identify the safety risks, hazards and hazardous events at some railway crossing of Addis Ababa light rail transit (AA-LRT) north-south (N-S) route. The identified risky events are then categorized based on As Low As Reasonably Practicable (ALARP) principle and generic risk ranking matrix. The authors then examine existing safety management measures at railway crossing and assess the need for additional safety management. Five major crossings on the 16.9 km (10.5 mi) N-S line, starting from Menelik II Square to Kality, were considered for the study. This study is carried out by data collection from about 145 stakeholders and the application of statistical data and risk analysis methods. The major findings of this study and the recommendations for improvement are suggested. Design/methodology/approach The research followed a case study approach. Through questionnaires and visual inspection, the authors identify the safety risks, hazards and hazardous events at some railway crossing of AA-LRT N-S route. The identified risky events are then categorized based on ALARP principle and generic risk ranking matrix. Collected data was then analyzed using SPSS to deduce relationships. Findings The study findings reveal human factors as the greatest cause of accidents, injury or death. About 22% of hazards identified by category are human factors, whereas 20% are because of technical problems. Intolerable risks stand at 42%, whereas the tolerable risks are at 36% according to risk classification results as per the ALARP model. Because the process of risk management is a long-term cycle, its importance should not be missed at any time. Research limitations/implications Because of design considerations of RLCs and the difference in generalized human behaviors for people of a given region, the results are limited to AA-LRT RLCs. This study opens a discourse for detailed evaluations, qualitative and quantitative analysis into the categorized identified hazards. There is also room for additional research into the performance of RLCs aimed at formulating standard necessary features that should be included on RLCs for proper risk control especially in emerging economies. Originality/value The research paper is original and has not been submitted for consideration to other journals.

Monitoring and Maintenance of CP System in MGL

Mahanagar Gas Limited is a City Gas distribution (CGD) company based out of the city of Mumbai and around. MGL currently has around 480 Kms of Steel gas pipelines for transportation of natural gas. The diameters of these pipelines are ranging from 2” to 18” and almost all are coated with 3 layer Poly Ethylene coating (3LPE). We are installing Permanent Cathodic Protection (PCP) for all commissioned pipelines and Temporary Cathodic Protection (TCP) having a design life of 5 years for un-commissioned pipelines during the projects stage itself. This paper shall basically outline the CP system in MGL along with various practices being followed in MGL to ascertain the effectiveness of CP. MGL has installed various CP assets like CP stations, Diode stations, external ER probes, corrosion coupons to ascertain the CP effectiveness. This paper shall outline the detailed monitoring procedure along with monitoring frequency of all the assets. MGL is also carrying out health adequacy surveys like DCVG, CIPL etc over the steel pipeline network. Few case studies arising out of these monitoring results shall be presented in this paper. (1) Casing carrier short at Taloja Railway crossing. The detailed procedure of monitoring and rectification shall be presented. (2) Case study on CP under-protection at Andheri which was resolved using a flange isolation kit.

Analisa Kebutuhan Ruang Pandangan Bebas Pada Perlintasan Sebidang Tanpa Palang Pintu Di Desa Gelam, Kabupaten Sidoarjo

Railway crossing are amongst the most complex of road safety handling systems, due to the conflicts between road vehicles and rail infrastructure operations. Railway crossing until now is still become the one of major accident cause for road users. Mainly caused by indiscipline acts of road users when pass a railway crossing such as opening an illegal crossing, trespassing closed crossing gate and unaware road users. In the area that growing into an industrial and commercial area, the origins of road network that is local road type changed to collector road type. This roads transformation affected to appears of unprotected railway level crossings which existing railways and roads are closed to each other. In Province of East Java especially at Sidoarjo Municipality there are two railway crossing which indicating to this serious matters located at JPL 69 Gelam 1 and JPL 70 Gelam 2. These two railway crossing showing an incomplete standard safety facilities which required such as railway warning sign and others. By this urgency, paperwork is held to discussing about standard safety facilities identifications and analyzing availability of clear visible zone according with Guidance of Technically Design of Railway Crossing. As a results explained that JPL 69 Gelam 1 is not recommended for safety reasons and JPL 70 Gelam 2 is recommended with several conditions that must be equipped.